Thermostat e1 error code

The table reflecting all the key aspects of Honeywell thermostat troubleshooting is presented below. Problem Possible Cause Solution Excessive noise If there is an antihum spring, it is not touching the throttling plate. Reposition spring to touch throttling plate. If there is no antihum spring or cone, the adhesive paper dot has fallen off of the throttling plate. Stick an adhesive paper dot on the throttling plate as described above.

Air leak in restrictor block and filter assembly.

Dometic Thermostat Error Codes

Use a bubble solution to locate the leak and repair it. Replace the restrictor block assembly and filter. Install Stiffener Plate on the backplate.

thermostat e1 error code

Oil or moisture in lines. Also ensure that the air supply to the thermostat is dry and clean. Thermostat instability System gain is too high. Move throttling range adjustment toward MAX position and then recalibrate.

Inaccurate readings Inaccurate calibration. Recalibrate thermostat. Metal cover setscrews over-tightened.

Turn setscrews in. Backplate over-tightened. Thermostat not switching over at changeover pressure Pressure at thermostat is incorrect.

Readjust compressed airline to proper switching pressure.

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Switchover pressure in thermostat is incorrectly calibrated. Turn switchover adjustment screw to recalibrate pressure for proper switching. Cannot calibrate thermostat Oil or moisture in lines. Display is blank Make sure fresh AA alkaline batteries are properly installed Cannot change system setting to Cool Check Function System Type to make sure it is set to match your heating and cooling equipment Fan does not turn on when heat is required Check Function Heating Fan Control to make sure it is set to match your heating equipment Heating system is running in cool mode Check Function System Type to make sure it is set to match your heating and cooling equipment Red light is on If thermostat is in Emergency Heat mode the red light is normal.

It shows that the thermostat is in emergency heat mode. If thermostat is not in Emergency Heat mode, contact a qualified service con- tractor for repair. It shows that the thermostat is in Emergency Heat mode.

Check message on the thermostat screen. Make sure the temperature is set higher than the Inside temperature. Make sure the temperature is set lower than the Inside temperature. Wait 5 minutes for the system to restart safely, without damaging the compressor.By jerryiNovember 12, in Systems and Appliances. There is an E1 code with the zone 2 flashing. Research has indicated that this means the zone 2 AC unit is not communicating with the Dometic controller and thus neither will operate.

I've tried powering off and on, including shore power. If so, do I need to remove the AC cover and is that easy? Is there any special precautions I need to take. Thanks-I'm just looking if there is an easy potential solution. There is a pile of paper work with information on the different systems included with the Coach, but if you are not the original owner, that information often gets lost.

E1 Loss of communication between the CCC 2 thermostat and all system power module boards. System will shut down. Remove, perhaps use an electric cleaner such as DeOxit and firmly reinstall. When your unit was installed the appropriate dip switches on the electronic control board were turned on to match your system configuration.

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Any time these settings are changed, a system reset will need to be done before the CCC 2 thermostat will recognize the updated selection. Just tried the breakers, it looked like it worked momentarily. Zone 1 did not show and error and only zone 2 showed the error.

So I turned to fan on low on zone 1, and it comes on and then shuts down again. I'm a little tentative about doing a reset as mentioned above since I did not change anything that would call for a reset. Is this still something I should try?

Go ahead and try the reset. It can't hurt anything but it might help. It's kind of like rebooting your computer.

thermostat e1 error code

I tried a total power off system including house batteries with breakers and fuses out for 20 min and that did not do anything-except the controller was not showing an error all the time on zone 1-however nothing responded regardless putting in fan mode didn't respond. This am I tried the reset, and that did not work, in fact it is showing a zone 4 only and nothing else-so I am assuming it is a bad controller.

Are these known for going bad? This unit is just over 3 years old. Per your original Post question things get lost sometimesGo ahead and remove the shroud on AC, not hard The ground wire should be green and will be attached to metal.A faulty thermostat could mean cold winters or sweaty hot summers, both of which are greatly unfavorable conditions that could have an adverse effect on human health.

This is why we have created this Dometic thermostat troubleshooting guide to ensure that you have control over your heating and cooling system when you need it most. So how do you troubleshoot a Dometic thermostat? Well, that depends on the issues you are facing.

thermostat e1 error code

Here is a detailed guide for solving almost any problem you will encounter with a thermostat from one of the best thermostat brands. It is important to know your temperature control requirements before programming your Dometic thermostat. Keep in mind that a thermostat may come with preset heating and cooling modes and all you need is to match the preset modes to your temperature schedule. Follow the steps below to create a table with temperature control requirements for your home.

Alternatively, you may use the default temperature modes on the thermostat for regular heating and cooling. With the above information, you are now ready to program your Dometic thermostat. Always consult the manual for instructions on how to program the specific model of thermostat that you have. Generally, the procedure is similar to many Dometic thermostats, with a few differences.

Below is a step-by-step procedure to program your Dometic thermostat. The above steps are applicable even if you have more heating and cooling periods within the day. For ease of use, Dometic has included a preset schedule that is activated when you set the time and date, then press the Run button. If you get stuck, consult your Dometic product manual for operating instructions.

You may need to reset a Dometic thermostat occasionally to change the temperature control. For example, weather patterns may change necessitating a change in the heating and cooling schedule. Resetting a Dometic thermostat returns it to the out-of-the-box state or factory default. To reset it, press the up, down and time buttons at the same time. You may refer to the section above on how to program a Dometic thermostat for configuration instructions. To reset the Dometic, follow the steps below:.

It is recommended to re-program the Dometic thermostat immediately after resetting to preserve its working life. If the thermostat were to default to a temperature control mode that is opposite the current requirement, it would overwork itself and consume unnecessary power.

If the thermostat comes on but does not provide temperature control, switch it to a lower temperature than its operating temperature. Allow ten minutes and turn it back on to the previous temperature.

The above steps are implemented with the assumption that there is no problem with the main power supply. You should carry out some basic power supply checks to ensure power supply is available and is the correct source i.The tables below are troubleshooting instructions for different models of Bryant Thermostat brand.

They enlist the most widespread technical problems and suggest possible causes and solutions. Each manual covers the whole range of issues starting from temperature displaying and finishing by the failure of WiFi programming options. But if you hesitate, hire a repairman to do the tasks for you in a more professional way. Both R and C must be connected for proper operation.

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An attempt to read outdoor temperature results in on display. Check for shorted, open, or failed outdoor temperature sensor. E2 will clear 15 seconds after proper voltaqe is restored.

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Check sensor for damage. If recycling power does not clear display, thermostat should be replaced. This is to remind the homeowner to "check" filter.

Press "reset filter button to clear display and reset timer to 0. Decrease cooling setpoint to 10 degrees below room temperature. If present, thermostat is OK and problem is with equipment or wiring.

If not present, replace thermostat. Increase heating setpoint to 2 or 3 degrees not more above room temperature. Increase heating setpoint to 7 or 8 degrees above room temperature. At times the display dims or dis- appears. Connect a ohm, 10 watt power resistor at the unit The air conditioning does not attempt to turn on.

The compressor timer lock- out may prevent the air conditioner from turning on, for a period of time. The display is blank.

Honeywell thermostat troubleshooting

Lack of proper power. The air conditioning does not attempt to turn on. The cooling set point is set too high. Press the down arrow until the cooling set point is 10 degrees lower than the room temperature. The heating does not attempt to turn on. The heating set point is set too low. Press the up arrow until the heating set point is 10 degrees higher than the room temperature.

The strip heater turns off well before reaching set point. Check for 24vac between R and C at screw terminals on mounting base.

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Reassemble, making sure pins on board engage sockets in mounting base. If display does not appear, replace Thermidistat Control. Replace Thermidistat Control. Check outdoor sensor and its wiring. Check wiring and heat pump defrost control board.You could use the tables below to understand the cause of the problem. Each table refers to 4 models of Mitsubishi thermostats. With the help of this information, you can determine the cause of failure and to fix it. Often the problem can be solved without repairman.

If other check code appears, replace the original remote controller. P1 Abnormality of room temperature thermistor 1 Bad contact of thermistor 1 Check the thermistor. Normal resistance should be as follows. P3 Signal transmission error Remote controller does not respond to indoor controller signal.

If the resistance is normal, replace the indoor controller board. P5 Malfunction of drain pump 1 Malfunction of drain pump 1 Check the drain pump. P6 Coil frost protection is working. P7 System error 1 Wrong address-setting 1 Check the address-setting. Search for:.

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Contents Show. Low pressure switch failure - check connection on the board and continuity of switch. High pressure switch failure - check connection onto board and continuity of switch. Both pressure switch contacts are open at the same time - check connection onto board and continuity of switch and for a potential board failure.

Ecodan high pressure fault - mainly caused by incorrect water flow rates - check with flow setter. Ecodan high compressor discharge temperature - mainly caused by refrigerant shortage or dirty condenser. Ecodan fan motor problem - mainly caused by DC fan motor being disconnected, connected or obstructed with the power on or possible main board fault.

Over voltage or under voltage - mainly caused by either CN2 or CN5 loose or disconnected or decrease of mains power supply.

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Abnormal running current - 40A detected during operation - check CN5 connections. Over current detected after 30 seconds of operation - do an inverter test to determine outputs balanced. Non-defined error code - noise interference - power down Ecodan for 30 seconds then switch back on.

Serial communication fault between Ecodan main board and Ecodan inverter board - mainly due to loose CN2 or CN5 cable. Over heating at heat exchanger - lack of water flow, air in the system, flow rate incorrectly set, blockage or pump problem. No temp change at plate heat exchanger - problem with flow rate too high - incorrect sizing of system.The tables below are troubleshooting instruction for fixing different Dometic Thermostat models.

Identify the problem and fix it with the help of step-by-step instructions — they are quite simple for understanding. LCD will cycle between E1 and the previous mode setting. System will shut down. E2 Open circuit or out of range Indoor Temperature Sensor. Heating and cooling operation will be locked out. Fan operation can continue to operate. E3 Shorted Indoor Temperature Sensor. E4 Open circuit or out of range Outdoor Temperature Sensor select models. Heat Pump operation will be locked out.

Air Conditioner, Fan and Furnace operation can continue to operate. E5 Open circuit or out of range Freeze Sensor. Air conditioner mode of operation will be locked out. Furnace, heat strip, heat pump and fan mode of operation can continue to operate but displays the last temperature set-point.

Search for:. Open circuit or out of range Indoor Temperature Sensor. Shorted Indoor Temperature Sensor. Open circuit or out of range Outdoor Temperature Sensor select models.

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Open circuit or out of range Freeze Sensor. Loss of communication between the CCC 2 thermostat and all system power module boards. Loss of communication between the CCC 2 thermostat and an individual system power module board. The LED will display error code El and the zone number that lost communication. Any additional zones that loose communication will blink in addition to the current zone.

Open circuit or out-of-range indoor temperature sensor. All heat, cool, and dehumidify operations will be locked out.

Dometic Thermostat Troubleshooting Guide

Manual fan operation will continue. All heat, cool, and dehumidify operation will be locked out.Remember Me? Results 1 to 8 of 8. Thread: E1 fault on thermostat. Thread Tools Show Printable Version.

E1 fault on thermostat I just got and E1 error code on my Dometic thermostat. How do I clear that code and what does it mean. Re: E1 fault on thermostat Try removing power from thermostat and see if it doesn't re-set.

LCD will cycle between E1 and the previous mode setting. Systemwill shut down. E2 Open circuit or out of range Indoor Temperature Sensor. Heating and coolingoperation will be locked out. Fan operation can continue to operate. E3 Shorted Indoor Temperature Sensor. Heating and cooling operation will belocked out. E4 Open circuit or out of range Outdoor Temperature Sensor select models. HeatPump operation will be locked out.

Air Conditioner, Fan and Furnace operationcan continue to operate.

thermostat e1 error code

E5 Open circuit or out of range Freeze Sensor. Air conditioner mode of operationwill be locked out. Furnace, heat strip, heat pump and fan mode of operation cancontinue to operate but displays the last temperature set-point.

Re: E1 fault on thermostat Just experienced this with a friends unit and not quite sure how we cleared it but we did. Sorry we cant better describe what we did. Re: E1 fault on thermostat Experienced same last fall.


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