Chris citizen joe
New Member
hi, have a system where a tankless water heater is situated under bench and left on.
Now have multiple units malfunctioning ...there is no water flow but the machine tuns on and if the thermal cutout doesn't work the tank boils off and blows up.
The system has a pressure pump feeding the supply.
Worked for two years but suddenly all machines malfunction.
Reed switch is somehow being fooled C into turning on machine...have tried pressure reducing valves thinking water hammer effect from pump is causing the problem...but now have run out of ideas...help please
Now have multiple units malfunctioning ...there is no water flow but the machine tuns on and if the thermal cutout doesn't work the tank boils off and blows up.
The system has a pressure pump feeding the supply.
Worked for two years but suddenly all machines malfunction.
Reed switch is somehow being fooled C into turning on machine...have tried pressure reducing valves thinking water hammer effect from pump is causing the problem...but now have run out of ideas...help please
