ERP1OS
Inlet hot water pressure sensor
disconnected from harness or controller,
not properly installed to controller or
broken
Ensure sensor and harness are properly
connected. Check wired connection to
controller and confirm proper configuration
(see page 28 for wiring diagram). Replace
probe if broken
ERP2OS
Inlet cold water pressure sensor
disconnected from harness or controller,
not properly installed to controller or
broken
Ensure sensor and harness are properly
connected. Check wired connection to
controller and confirm proper configuration
(see page 28 for wiring diagram). Replace
probe if broken
ERP1+
Inlet hot water pressure is greater than 125
PSI
Investigate cause. Valve and related fittings
are rated up to 125 PSI working pressure
ERP1-
Inlet hot water pressure is less than 40 PSI
Investigate cause
ERP2+
Inlet cold water pressure is greater than 125
PSI
Investigate cause. Valve and related fittings
are rated up to 125 PSI working pressure
ERP2-
Inlet cold water pressure is less than 40 PSI Investigate cause
ERT5OS
Optional temperature probe (5)
disconnected from controller, not properly
installed to controller, or broken.
Ignore error if no probe is present. Check
wired connection to controller and confirm
proper configuration (see page 28 for wiring
diagram). Replace probe if broken
ERT5+
Temperature at probe (5) above configured
maximum temperature
Investigate cause
ERT5-
Temperature at probe (5) below configured
minimum temperature
Investigate cause
ERT6OS
Optional temperature probe (6)
disconnected from controller, not properly
installed to controller, or broken.
Ignore error if no probe is present. Check
wired connection to controller and confirm
proper configuration (see page 28 for wiring
diagram). Replace probe if broken
ERT6+
Temperature at probe (6) above configured
maximum temperature
Investigate cause
ERT6-
Temperature at probe (6) below configured
minimum temperature
Investigate cause
ERT7OS
Optional temperature probe (7)
disconnected from controller, not properly
installed to controller, or broken.
Ignore error if no probe is present. Check
wired connection to controller and confirm
proper configuration (see page 28 for wiring
diagram). Replace probe if broken
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