Where to find these parts?

[rjreiffer]

Hello all, (not 100% sure this is the right forum) I have a 1998 Georgie Boy with a Dometic AC unit that appears to have a bad start cap. The part numbers are in the pictures below. The capacitor is a 370V, dual 20/10 Cap (2” round). I understand it was made by Aerovox.

I was wondering where these two parts might be sourced? Going to try the start cap first. (The compressor comes on and runs but the fan motor does not and it does free spin).





Thanks all

[egwilly]

I think Dyers RV online sells these items. Probable other sources available and substitute parts might be available elsewhere. I think the capacitor is your issue.

Google is your friend. I found these here: https://www.dyersonline.com/rv-appli...apacitors.html

[Solo_RV_Guy]

About $40-45 from RV parts suppliers (sourced from Dometic) or about $25 from Amazon. Avoid buying solely on price.


As egwilly said, internet searches are your friend.

[A32Deuce]

I get a lot of elec like that from Granger.

[cataska]

Yep Grangers.

[hoakken]

Available at most any electrical supply.

[rjreiffer]

Ok, thanks all. I will make some calls in the morning and see if I can pick one up locally as we are heading out this Thursday for the weekend again. With some of the tips here I was able to get the Dometic part number. Found the exact one on eBay for $20 but It would not make it here in time.

[Isaac-1]

With the capacitors close is usually good enough, so if you don't find an exact match you might try something within 5-10% of the matching values.

[rjreiffer]

Ok, sometimes you have to go back to “what was the last thing I did!”.

I bought a new capacitor and put it in and still the fan did not come on. Last fall I had replaced the old Dometic thermostat with a Honeywell Digital thermostat and I thought everything was fine.

Come to find out a couple of things:
1. The furnace DOES NOT require the fan to be wired as the furnace fan runs based upon the temperature of the furnace, not on the setting of the thermostat.
2. In this unit the furnace and the A/C are totally separate and all the thermostat does is enable the furnace or enable the furnace or the A/C, HOWEVER the thermostat does control the fan on the A/C unit independently.
3. I also found out that my old Dometic thermostat is bad and never operated correctly (hence me wiring the A/C fan switch incorrectly!), so when I was testing I was trying to duplicate the way the original Dometic thermostat (so basically I duplicated a broken switch Does that mean I was successful? )
4. My first High/Low Fan switch had a broken wire which stopped the fan from running at all!
5. The way the High/Low switch works is that it is a cascading connection, NOT an either or! What that means is in order for the low speed fan setting to work there must be a connection from the FAN terminal to the LOW Speed wire. In order to make the fan work in high speed you must have a connection from the FAN terminal to the LOW speed wire AND to the HIGH speed wire as well.

So bottom line is that my first attempt at a HIGH/LOW fan switch failed but the second one is working great! (And I have a spare capacitor!)

[Ancabuild]

Try Mcmaster Carr