09-23-2018, 04:09 PM
What type or brand of pump are you using?
If you are using the red pumps (March pumps) this can happen when the cooling line that is on the pump (the copper lines that you see on the pump) become clogged and the pump kicks off due to high heat. After approx. 3-4 minutes since you have no water flow the AC unit will also kick out as you specify.
Corrective action is to remove the pump and clean out the copper cooling lines to ensure proper water flow on the cooling circuit. Has happened to me several times. If you can catch when the pump does not run but the AC units are, feel the red pump body. Be careful, if what I said above is happen then the red body will be HOT. If everything is running correct, you should be able to touch the red body for a long time as it will remain cool as it is cooling correctly.
If you are running the red march pump (sometimes Dometic has blue ones but they are still made by march) the this information is of no use to you.
If you are using the red pumps (March pumps) this can happen when the cooling line that is on the pump (the copper lines that you see on the pump) become clogged and the pump kicks off due to high heat. After approx. 3-4 minutes since you have no water flow the AC unit will also kick out as you specify.
Corrective action is to remove the pump and clean out the copper cooling lines to ensure proper water flow on the cooling circuit. Has happened to me several times. If you can catch when the pump does not run but the AC units are, feel the red pump body. Be careful, if what I said above is happen then the red body will be HOT. If everything is running correct, you should be able to touch the red body for a long time as it will remain cool as it is cooling correctly.
If you are running the red march pump (sometimes Dometic has blue ones but they are still made by march) the this information is of no use to you.
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