Lights blink every time H2O pump is operated

[mikey]

2018 XL40B Every time we’re not hooked up to city water and operate the H2O pump, the lights throughout the MH blink; pump off, no light blinking. Anyone know the cause here?

[Jmkjr72]

What's the charge and condition of the battery. The pump can be a pretty high draw you will have the high surge in amps of start up and then it lowers and it may even spike againg as the pressure builds to shut it off

[mikey]

Originally Posted by Jmkjr72

What's the charge and condition of the battery. The pump can be a pretty high draw you will have the high surge in amps of start up and then it lowers and it may even spike againg as the pressure builds to shut it off

Batterys are fully charged and new in our 2018 XL40B-380 & are fully watered since new. Problem existed sine new as well. This morning DW reported that when Equalizer Levelers were retracted for a trip, she saw the same flicker in the lights as when the H2O pump operated.

[DDC]

That sounds like a poor ground condition, check the ground for the pump.

[BamaBob]

DDC is correct - you probably have a chassis ground problem -We had a similar problem on our coach, whenever you shut the coach door all the lights would flicker!

[Flybob]

If multiple things cause the problem, you may have a bad or loose ground cable from battery to chassis.

[Brother Les]

You have a grounding issue.
Should not the sDealer fix this under warranty?
Don't make matters worse or spending a lot of time hunting this down... call the sDealer about this...