This has been a problem since we got the unit over 2 years ago.
Seems like it happens whether or not it is a mixer valve or separate. Some days the water pressure is higher and it's not an issue, but for basically every single faucuet, or shower that doesn't have the flow regulator literally drilled out it will stop heating. Somehow the dishwasher can pull hot water, I have no idea why though.
Usually it will start heating for a bit, but then the in use light will just go off. With Kitchen faucet I checked and it was at 1.3 GPM the entire time, but just shuts off after 15 seconds or so. Extremely frustrating. I have heard cleaning the flow and/or flame sensor might help but I have no idea what I am doing and finding someone to do maintenance here is a nightmare or I would just pay someone to do it.
Having the temp down to 100F helps, but doesn't totally alleviate the problem.
Seems like it happens whether or not it is a mixer valve or separate. Some days the water pressure is higher and it's not an issue, but for basically every single faucuet, or shower that doesn't have the flow regulator literally drilled out it will stop heating. Somehow the dishwasher can pull hot water, I have no idea why though.
Usually it will start heating for a bit, but then the in use light will just go off. With Kitchen faucet I checked and it was at 1.3 GPM the entire time, but just shuts off after 15 seconds or so. Extremely frustrating. I have heard cleaning the flow and/or flame sensor might help but I have no idea what I am doing and finding someone to do maintenance here is a nightmare or I would just pay someone to do it.
Having the temp down to 100F helps, but doesn't totally alleviate the problem.