The shower water temperature fluctuates (tub/shower combo)- this seems to only occur in the shower, and I am not making other demands to the water supply (such as flushing toilet/running dishwasher, etc). The temp remains constant when drawing water for the tub, running the faucets in the bath sink as well as the kitchen. I can't say I notice a big, if any, change in water pressure.
This is what happens. I turn on the shower, and get the water adjusted to where it is comfortable. After about a minute it may get cooler or warmer so I try to adjust, trying to chase a comfortable temp. Sometimes it works, sometimes the hot water heater will actually error out and then all I get is well water cold water. (brrrrr)
I am on a well.
The manufacturer for the temperature control is Moen and I recently replaced the cartridge insert, thinking it might be the cause. It is not.
The bathroom and kitchen sink have what appear to be water temp regulators plumbed in. These are red capped pvc "knobs" (looks like the end of business end of a torpedo) that spin. I do not know if there is one buried in the wall of the shower and if there is, if it would cause the problem I'm experiencing. I'm thinking it would be installed after the tub faucet as that appears to be working fine.
The water heater is a Navien tankless, and will sometimes throw an error out (failure to ignite) during the shower once the temp starts to fluctuate.
I hope I've provided enough info for someone with alot more knowledge than I to make a educated guess as to what I should to to either fix or continue to troubleshoot the problem.
Thank you,
Carolyn
This is what happens. I turn on the shower, and get the water adjusted to where it is comfortable. After about a minute it may get cooler or warmer so I try to adjust, trying to chase a comfortable temp. Sometimes it works, sometimes the hot water heater will actually error out and then all I get is well water cold water. (brrrrr)
I am on a well.
The manufacturer for the temperature control is Moen and I recently replaced the cartridge insert, thinking it might be the cause. It is not.
The bathroom and kitchen sink have what appear to be water temp regulators plumbed in. These are red capped pvc "knobs" (looks like the end of business end of a torpedo) that spin. I do not know if there is one buried in the wall of the shower and if there is, if it would cause the problem I'm experiencing. I'm thinking it would be installed after the tub faucet as that appears to be working fine.
The water heater is a Navien tankless, and will sometimes throw an error out (failure to ignite) during the shower once the temp starts to fluctuate.
I hope I've provided enough info for someone with alot more knowledge than I to make a educated guess as to what I should to to either fix or continue to troubleshoot the problem.
Thank you,
Carolyn