RVs - Page 2 - Recent Questions, Troubleshooting & Support
My aldi wet heating system heats the water up fine but doesn't heat the caravan up on electric any ideas it's getting cold now
Check the expansion tank for proper level of glycol heat transfer fluid. When hot it must be between the low and high level markes. Your expansion tank may be hidden behind a panel depending on manufacturer.
If level is low, you may have an air bubble in the system. Add antifreeze and find circulator pump. Turn pump up to high and set thermostat to highest temperature to force pump to run. Open bleeders found in one or more places in heating system to release air pockets. Leave pump on for 1/2 hour or so to gradually remove all air from system and release through expansion tank. Refill tank as necessary keeping level between high and low marks.
Turn pump speed back to normal for your comfort - mine gurgles in expansion tank if set above 2 on the adjustment knob found on face of pump motor.
on Oct 02, 2018
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