Installation manual

Rinnai Australia - 4 - HOTFLO Electric Storage Water Heater Operating/Installation Manual

Our Servicing network personnel are fully trained and equipped to give the best service on your Rinnai appliance.

If your appliance needs service, ring one of the service contact numbers on the back of this booklet.

The pressure and temperature relief valve and expansion control valve must be checked for performance or

replaced by an authorised person at intervals not exceeding 5 years or more frequently in areas where the water

is classified as scaling water (see ‘Water Quality’).

It is recommended that the sacrificial anode be inspected every 5 years or more frequently in areas where there is

a high incidence of water deposits.

If the electric conduit, power supply cord or plug to the water heater is damaged, they must be replaced by an

authorised person in order to avoid a hazard. The power supply cord and plug (if fitted) must be replaced by a

genuine replacement part available from Rinnai.

SAVE A SERVICE CALL

Check the items below before requesting Service. Service and parts charges may be incurred where it is found that

there is no fault with the water heater and the issue is related to the plumbing installation or is due to the failure of

water or electric supplies.

LACK OF HOT WATER OR NO HOT WATER

HIGH ELECTRICITY BILLS

If you think your electricity bill is too high, investigate the following:

• You may be using more hot water than you think. This applies especially to showering. Review hot water

usage, especially the time taken for showering, and investigate the use of flow control valves or 'water saving'

shower roses. Investigate recent changes to hot water usage patterns.

• Water heater valves may be discharging excessively. Refer to the section "Water heater valves discharging

excessively".

• There may be hot water leakages in hot water pipes or taps. Have these checked and rectified by a plumber.

• There may have been changes in electricity tariffs since your last bill.

If, after investigating the above, you still require assistance contact Rinnai.

Is there electricity supply to the water heater?

• Check that the isolating switch marked "HOT WATER" or "WATER HEATER" at the meter box is

switched on. Check also that any isolating switches installed near the water heater are switched

on.

• Check the fuse or circuit breaker marked "HOT WATER" or "WATER HEATER" at the meter box.

Repeated failure of fuse or tripping of circuit breaker indicates a fault which must be investigated

by an authorised trades person.

Is your unit a Twin Element electric water heater?

• A twin element model (non-simultaneous) must have a continuous electricity supply to the top

heating element. Check that this is the case.

Are you using more hot water than you think?

• Often it is not realized how much hot water is actually used. This applies especially to showering.

Review hot water usage, especially the time taken for showering, and investigate the use of flow

control valves or Water saving shower roses.

Are water heater valves discharging excessively?

• Refer to the section “Water heater valves discharging excessively”.

QUESTION

SERVICING AND REPAIR