Why does my Rinnai gas heater keep turning off?

The main reasons that a gas water heater automatically shuts off are because the pilot light goes out, the pilot light can’t start, or there are problems with the gas supply. If it is dirty, turn off the gas to allow the thermocouple to cool. You can then clean the thermocouple by gently sanding it with fine sandpaper.

How to troubleshoot Rinnai Water heaters using error codes?

Troubleshooting Rinnai water heaters are much easier if they come with the diagnostics system. Units equipped with the remote controller, such as the MC-91-2, will provide the most recent diagnostics information and allow you to react immediately by recognizing the error code and following the troubleshooting guide.

Is the Rinnai r75ls tankless water heater keeping constant heat?

Went out to my dad’s again over Thanksgiving where he has a Rinnai R75LS, tankless water heater. Over the past two years, the water heater doesn’t seem to keep constant heat. They’ve looked at it in the past and just said it needs some cleaning and removed any moths that might of gotten in.

What should I do if my Rinnai controller is not working?

If a controller is fitted check that it is on also) Check gas supply (Turn gas stove top on then turn hot water tap on. If flame drops on stove this shows it is possibly a gas supply issue) Is there enough water flowing? (Try opening tap further or turn another tap on as well) Are there any error codes displayed on controllers?

What makes a Rinnai gas heater so efficient?

The Rinnai efficiency has an additional heat exchanger. The second heat exchanger enables the efficiency range to extract even more heat from the gas, meaning less energy is required to meet your hot water requirements.

Where are the error codes on my Rinnai tankless water heater?

The previous nine error codes are stored in memory. To access these codes, hold the ON/OFF button for two seconds and simultaneously press the UP arrow. Have a different tankless water heater brand that needs troubleshooting?

If a controller is fitted check that it is on also) Check gas supply (Turn gas stove top on then turn hot water tap on. If flame drops on stove this shows it is possibly a gas supply issue) Is there enough water flowing? (Try opening tap further or turn another tap on as well) Are there any error codes displayed on controllers?

How to check power supply on Rinnai hairdryer?

Checkpower supply (Plug another appliance (ie hairdryer) into power point and test. If a controller is fitted check that it is on also) Check gas supply (Turn gas stove top on then turn hot water tap on.

How to contact Rinnai gas appliance customer care?

Whether you have a question about a Rinnai gas appliance, need support or would just like to give us some feedback, we’re happy to hear from you. Send us a message or call our Customer Care team at 1-800-621-9419. We are available Monday through Friday, 8 a.m. to 8 p.m. EST.