Navien NR-35D User Manual page 24

Checklist before Reporting Failure
· If there's a problem with the product, please check the following before requesting inspection to
Our service center or outlets
· If `Fault code` appears on the LCD screen with `service` sign, please follow 'Self-Diagnosis' according
to each symptom then restart. (The boiler will operate once power plug is connected again or
power is switched off and switched on again)
· Please contact the installer near your home or contact Navien service center
(www.navien.co.uk or phone 0844 332 2323)
Symptom
Power doesn't switch on.
(Nothing indicated on Room
Controller)
24
Checklist
Is the Room controller switched off?
Is the power plug connected?
Is there a power failure?
Is earth leakage breaker OFF?
Is there contact failure in the power
plug?
Is the fuse in the boiler cut off?
Solution
Please press button on the Room
controller.
Please connect the power plug.
Please wait until power comes back on.
Please switch on earth leakage breaker ON.
Please repair the power plug by contact-
ing our service center.
Call our service center to replace the fuse.