Raypak Troubleshooting Assistant
Get instant AI-powered help for Raypak fault codes and equipment issues via WhatsApp. Our assistant is trained on official manufacturer documentation — available 24/7 for field technicians.
Co-founder & CTO · Reviewed July 2026
What error codes does Raypak display?
Outlet water sensor fault on the XTherm/MVB controller display.
High limit sensor fault on the XTherm/MVB controller display.
Inlet water sensor fault on the XTherm/MVB controller display.
Gas pressure / PIM wiring related error on the XTherm/MVB controller display.
Ignition fault on the XTherm/MVB controller; clear with RESET.
Heater temperature tripped the high limit on the XTherm/MVB controller.
False flame detected on the XTherm/MVB controller display.
Identity card fault on the XTherm/MVB controller; check ID card and wiring.
Internal control fault on the XTherm/MVB controller; reset power, replace control.
Temperature difference between inlet and outlet exceeded the setpoint.
Low 24 VAC power; check power supply wiring and transformer.
Blower speed out of range; check blower wiring and blower.
Common questions about Raypak equipment
What other HVAC brands does AskWhiz cover?
AskWhiz also covers troubleshooting for these manufacturers in the same industry:
AskWhiz Playground
Test your diagnostic skills
Play a real HVAC service call in the AskWhiz Playground — real brands, real fault codes, no signup.
Play a real service call