Electric fireplace quits

Here's a thought from left field (or at least left-center field): Do you have a surge guard or PI EMS or similar power line monitoring/EMS system? If so, do you have 120V power for anything else in the RV when the heater stops working?

Maybe the voltage is on the low side or the connection to shore power a bit poor, and the load from the heater is causing the voltage to drift down far enough for the EMS to disconnect. After a couple minutes it reconnects because the voltage is OK when the load isn't there. That would tend to explain why it works fine at the dealer, too: they happen to have a better shore power connection.

If the dealer can get it to work properly (per his statements) and you can't, then why not take it back and show him how you're starting it and that it goes out? Then, he can either tell you what you're doing wrong OR he can admit there's a problem and fix it.

If it restarts on it's own, it sounds like the high temp. thermal cutout switch is shutting it off due to dust in the blower. Not sure what you mean when you say you shut it down and restart it - is that via the thermostat or resetting the breaker?

Possibly the remote? (If so equipped.) Turn the 3-position switch from remote to manual and see if it stays on.

Not sure what model you have, but here is a Dimplex troubleshooting guide and owner's manual.

If all else fails, can't be hard to figure out, pull a panel, get your voltmeter, find out whats hot and whats not !

Those units are really just a electric heater which draws alot of AC Current when turned on. Perhaps it is tripping your circuit breaker...

Roy Ken

Is your air flow somehow restricted causing an over temp situation?

If this it like mine the high temp limit switch inside is "dirty" from lint, etc. that collects during normal operation. I have had to open mine up twice in the past six years and vacuum it out. The instructions are on the Dimplex site and it isn't hard to do. There are just a lot of screws holding the heat box together. The second time it was much faster than the first. There are several power connections that should be removed to get the heating element out to clean it real good. Just take a picture of these to make sure you put them back in the correct place.

jpjulian wrote:
Our electric fireplace quits heating after 5-10 minutes. It won't heat thereafter unless we shut it down for awhile and then restart it where it will run for another few minutes and will stop heating again. Our dealer says they ran it up to 90 degrees inside and there is nothing wrong. Yet we run the unit and it won't run more than a few minutes. I think it has a faulty thermostat but the dealer says no it's fine. Ideas??

Joe

some random ideas in no particular order....

- assuming dealer is right maybe you're not setting t-stat high enough and unit is functioning properly. try setting t-stat for 95-deg or whatever highest setting is.
- if it always shuts down after 5-10 min then that can be duplicated in front of dealer or is this an interrmittent problem?
- find a different dealer