PAGE 38
QUANTUM NXT DI HEATER OPERATION / MAINTENANCE MANUAL
Element Not Heating
Cause:
Solution:
Failed heater
Check if heater element has failed and replace module (see
Section 7.1).
Circuit breaker tripped
Check and reset the main, auxiliary and element isolation circuit
breakers.
Consult Trebor if circuit breaker repeatedly trips.
Heater disabled
Check touch screen to verify the heater is enabled. If the heater
won’t enable check that heater is in local mode on the home
page.
Solid State Relay (SSR) may
have “frozen” open or closed.
An SSR has failed in the open mode: Shut system off
immediately and replace the failed SSR.
Fluid temperature won’t reach set point
Cause:
Solution:
Element not heating
Check if heater element has failed and replace module (see
Section 7.1).
Check and reset the main, auxiliary and element isolation circuit
breakers.
Ambient temperature setting
variance
Set ambient temperature to correct value on Configuration Page
Too much flow
Lower flow rate to achieve desired set point
Poor Temperature Control
Cause:
Solution:
Element not heating
Check if heater element has failed and replace module (see
Section 7.1).
Check and reset the main, auxiliary and element isolation circuit
breakers.
Solid State Relay (SSR) may
have “frozen” closed (shorted)
An SSR has failed in the closed mode: Shut system off
immediately and replace the failed SSR
Ambient Inlet Fluid Temperature
Too Low
Lower Ambient Inlet Fluid Temperature (see sec 3.5.e).
