HIGHError Code
E007: Water Pressure Sensor Error (Boiler)
Boiler water pressure sensor reading outside normal operating range.
What This Error Code Means
Pressure sensor signal is invalid for safe operation.
Common Causes
Pressure sensor failed
Wiring damaged
Actual pressure high or low
Water hammer damage
Control board input fault
Affected Brands
NavienViessmannWeil-McLainBuderusLochinvar
How ROMA Heating Fixes This Error Code
Check actual system pressure
Test sensor output
Inspect wiring
Replace sensor if failed
Verify proper system pressure
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