Hydra Hot circulation pump(s) location

[LDMcK]

Does anyone know where the actual location is for the circulation pumps on a Tuscany 45LT? The front of the coach diesel heaters are throwing out cold air while the bedroom is nice and toasty.

Any help would be appreciated.

[spsm]

http.Aqua-Hot Heating Systems for RV, UTV, RTV or call Roger Berke [moderator edit], a hydro-hot specialist, he may be able to help.

[lowtiderider]

The circ pumps are on the aqua hot unit. The cover needs to be removed, pretty straight forward to change as I have had one go on me already. I changed myself in about an hour & got the parts from aqua hot.

[LDMcK]

Thanks for the reply. I had looked at the Aqua Hot unit but because the way I was looking I missed them. I later went back after your post and stuck my head further into the compartment and got a better look and there they were. It does not help that I decided to look for them at night.

[Clayobx]

Have you changed the filter? If so you have to purge the air on both AH pumps.

[StevenH]

Sounds like a stuck check valve. If you have heat in one zone and not another most times it is the check valve that is stuck closed.

Set the thermostat on the zone with no heat output so that it is calling for heat. Near the circulation pump there will be a check valve in the line. Give it a couple good hits with a large screwdriver handle or other solid object. You should be able to feel the line warm up as the liquid in the line begins to flow. You will now have heat in that zone. Cheap fix.

Steve