Troubleshooting - Rinnai RRSH2 User Instructions

Attention: Before restarting ignition, return the flame control knob to off position
Ensure that the appliance cools down completely before undertaking remedial measures. If not effective
after undertaking the following remedial actions, please appliance vendor or Towngas LPG Appliances
Sales Enquiry and Service Hotline on 2232 1111.
Fault
1. No ignition or
flame
2. Flame does not
persist
3. Flame off when
using
4. Yellow flame
5. Unstable flame
6. Abnormal noise
when using
7. Pop sound
when flame
extinguishing

Troubleshooting

Cause
Piezoelectric ignitor fails.
Main gas valve and / or appliance
gas supply valve is turned off.
Air is trapped inside gas pipe.
Burner is blocked by aluminum
disc.
Flame failure device is dirty.
Flame control knob is not fully
pressed or not turned to the ignition
position.
Holding time of flame control knob
is too short.
Flame failure device is dirty.
Small flame is blown off by wind.
Burner caps have dirt.
Deformation of burner caps.
Incorrect placement of burner caps.
Incorrect placement of burner caps.
Instant combustion of gas remained
in burner.
Contact appliance vendor or Towngas
Company to replace the part.
Open main gas valve and/or appliance
gas supply valve completely.
Repeat ignition until trapped air is
removed.
Remove aluminum disc.
Clean flame failure device.
Fully press and turn the flame control
knob to the ignition position.
Keep pressing flame control knob for 5
seconds.
Clean flame failure device.
Wait for 1 minute and restart ignition.
Wash burner caps in warm water with
detergent. Dry and replace them at
correct position. Restart ignition .
Contact appliance vendor or Towngas
Company to replace the parts.
Replace burner caps correctly after
appliance cools down and restart
ignition.
Replace burner caps correctly after
appliance cools down and restart
ignition.
Normal phenomenon.
6
"".
Remedy