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timotb's avatar
timotb
Explorer
Sep 16, 2019

12 volt water pump runs in bursts on hot side only

Troubleshooting an RV 12 volt electric water pump that runs in one second bursts on the HOT side (not allowing the Girard tankless hot water heater to fully activate). Pump runs constant and correctly...
opnspaces's avatar
opnspaces
Navigator III
Sep 17, 2019
open all the hot taps including the outside shower and turn on the water pump. If it flows better look for blockage near the one that flows poorly.

Did you verify that your bypass valves if any are set correctly?

Is there an accumulator on the cold side of the water system?

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