Comfort Zone Heating & Cooling - Page 4 - Recent Questions, Troubleshooting & Support

Pulled side covers and followed the power to switch with small red button. Had power on 1 side none on other. Pressed little button and started working

the internal fuse is blown

There is no reason to use a 40 or 50 amp breaker on the circuit. If you do, you risk a fire from the wire size being wrong from the breaker. Use the recommended 30. Also if you use the over rated size breaker it wont pass an inspection that you have to get.

To repair this you must have correct tools, skil and knowledge. The on of switch should take a standard wall light switch. Again if you attempt this and do it incorrectly you have a good chance of afire. Play it safe and replace heater and sleep well.

try manufacturer or online search using make and model

An E0 or E4 error is most commonly caused because the unit has not been run with sufficient fresh air ventilation and the flame current sensor and burner gauze have deposits built up on them. Cleaning the flame current sensor and burner gauze with a steel wire brush will remedy this. If this does not cure it then the problem is pump related due to contamination. These pumps are very difficult to service and may not be repairable at all if the teflon coating on the steel piston inside the pump has become scratched. You will need to replace the entire pump assembly (available from ourselves). Stick to good quality fuel ( not kerosene) and make sure you have adequate fresh air ventilation entering the area where it is running - yes that does mean leaving a window open.

likely need to "enable zoning" in setup menu.

If you want to manually control the temp, not running the program, press the hold button. If you want a new schedule, read the manual.

Here is link to manual on that system. http://dms.hvacpartners.com/docs/1009/public/01/zonekit-14si.pdf

if less than 90 days old, take it back to the store and return it.