Water pump problem

[Pete Masterson]

The pump is pretty durable, but it may be partially clogged and/or
need a rebuild causing it to overheat. That might cause a circuit
breaker to trip then reset. (Don't know where they are on your year.)
I'd guess that the expansion tank would need about 40# as that's what
the operating pressure is ... but it may be lower. The pressure in
the tank allows the pump to run at a constant speed until the
pressure in the system is "right". Then the tank provides the
pressure until it drops to the point where the pump kicks on again.

If the water pressure at a faucet isn't significantly changing as the
pump cycles on-off-on, then the problem may not be the expansion tank
at all.

If the pump needs a rebuild, kits are available for a modest cost
$20~30 or so. Most often, the pump will 'seep' at the joint in the
case between the motor and the pump section if it needs a rebuild --
but perhaps not.

If you find the circuit breakers, swap the one for the pump circuit
for another one with a similar rating. It could be a faulty breaker
instead of the pump, but that's not as likely. Even if it is the
breaker tripping, you'll need to determine why the breaker trips.

Pete Masterson
aeonix1@...
'95 Blue Bird Wanderlodge WBDA 42'
El Sobrante, CA




On Mar 7, 2007, at 2:55 PM, Keith Strehle wrote:

> Thanks Pete, I was wondering what the tank was for. That makes
> perfect sense. How much pressure should I put in it? I also thought
> of overheating but the coach is very lightly used? Doesn't seem like
> the pump is worn out?
>
> Thanks, Keith
> 84FCSB
>
>
> --- In WanderlodgeForum@yahoogroups.com, Pete Masterson
> wrote:
>>
>> The expansion tank may have lost its 'charge' of air. There's a
> tire-
>> valve nipple on the top that you can use to 'pump up' the
> pressure.
>> Or the expansion tank may have had the diaphragm fail -- replacing
>> the tank is the only solution then. Or, you might want to try the
>> variable speed pump option -- replace your pump(s) and expansion
> tank
>> with the Shurflow variable speed pump. Caution - this option will
>> raise your coach water pressure to 65lbs when you're on the pump.
> Be
>> sure your plumbing can handle it.
>>
>> There may be other reasons for the pump to act up as well..
> possible
>> overheating?
>>
>> Pete Masterson
>> aeonix1@...
>> '95 Blue Bird Wanderlodge WBDA 42'
>> El Sobrante, CA
>>
>>
>>
>>
>> On Mar 7, 2007, at 1:58 PM, Keith Strehle wrote:
>>
>>> The water pump in my coach stops suddenly and starts again within
> a
>>> minute or less. Any ideas what may be causing it?
>>>
>>> Thanks Keith
>>>
>>>
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