Lost Hot water pressure
On our last trip on the return side the water pump quit providing adequate pressure even though it ran normally, but would never shut off. Finally got around to trying to figure out what is going on. tried the pump again at home and noticed I wasn't getting any pressure at all on the hot side and very low pressure on the cold side and the pump never quit running. Decided to drain the suburban water heater, pulled the anode which was completely used up and a whole lot of the white residue was in the tank. Flushed the tank several times as best I could, got a lot of white stuff out, way more than normal. This anode has been in there for 5 months of continuous use in AZ before the last trip home. The RV has been hooked up to city water for 5 months prior to the return trip. Ok, cleaned the anode up and re-installed it and hooked up to city water again and waited for the water heater to fill back up. Still no hot water pressure but normal cold water pressure. Disconnected the city water and tried the pump. Pump wouldn't even turn on???? That is weird. Hooked back up to city water and tried the pump just out of curiosity and it ran again. Now that is really weird. But the bottom line I'm not getting any hot water pressure either with the pump or from the City water connection but decent cold water pressure with both the pump and the city water connection.
I'm offering all this information even though some of it doesn't make any sense yet. My present guess is some of the white residue off of the Anode has plugged the out hot water line somewhere. I have no idea how this 2006 Keystone/Montana 3400RL is plumbed but my thinking is it must be plugged on the outlet side of the water heater feeding all the hot water taps. I don't know if I have two problems or just one. I don't understand why the pump doesn't shut off even if one pipe is plugged somewhere. I've initially tried to blow air pressure back through the hot water side of the kitchen sink faucet but that hasn't helped. I didn't seem to get any relief blowing backwards which I kind of expected and that confuses me. I expected that air pressure to show up in the water heater. Ran out of daylight. I think I will try putting back air pressure from the two other hot water taps as well to see if that unplugs the main line from the water heater that must feed all three hot water faucets. Am I correct that the 12V pump just feeds cold water pressure to the water heater similar to the city water connection and the hot water gets to the three hot water faucets the same way no matter whether I'm on the pump or the city water connection? I would think it would have to be plumbed that way. I suppose I could have a broken hot water line but I don't see or hear water running when all faucets are turned off and none coming out from the bottom of the RV. Is my thinking correct that this has to be caused by a broken, plugged or twisted Pex line from the water heater to the three faucets? Looking for other hints and tips on how to isolate this further. Not going to try to troubleshoot the water pump further until I get the hot water running properly on the city water connection. The two problems may be being caused by one issue but It doesn't make sense to me yet. Any tips or hints would be appreciated. Help???
I'm offering all this information even though some of it doesn't make any sense yet. My present guess is some of the white residue off of the Anode has plugged the out hot water line somewhere. I have no idea how this 2006 Keystone/Montana 3400RL is plumbed but my thinking is it must be plugged on the outlet side of the water heater feeding all the hot water taps. I don't know if I have two problems or just one. I don't understand why the pump doesn't shut off even if one pipe is plugged somewhere. I've initially tried to blow air pressure back through the hot water side of the kitchen sink faucet but that hasn't helped. I didn't seem to get any relief blowing backwards which I kind of expected and that confuses me. I expected that air pressure to show up in the water heater. Ran out of daylight. I think I will try putting back air pressure from the two other hot water taps as well to see if that unplugs the main line from the water heater that must feed all three hot water faucets. Am I correct that the 12V pump just feeds cold water pressure to the water heater similar to the city water connection and the hot water gets to the three hot water faucets the same way no matter whether I'm on the pump or the city water connection? I would think it would have to be plumbed that way. I suppose I could have a broken hot water line but I don't see or hear water running when all faucets are turned off and none coming out from the bottom of the RV. Is my thinking correct that this has to be caused by a broken, plugged or twisted Pex line from the water heater to the three faucets? Looking for other hints and tips on how to isolate this further. Not going to try to troubleshoot the water pump further until I get the hot water running properly on the city water connection. The two problems may be being caused by one issue but It doesn't make sense to me yet. Any tips or hints would be appreciated. Help???
