EHF80S36 User Manual

Loading ...

Rinnai 9 HOTFLO (HFE Series) Electric Storage Water Heater OIM

SAVE A SERVICE CALL

Check the items below before requesting a 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�

Insufcientornohotwater

Is the electricity supply

connected?

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 ow control valves or Water saving shower roses.

Are water heater valves

discharging excessively?

Refer to the section “Safety Devices” on page 7�

Thermostat settings? Check the temperature of hot water delivered with a thermometer placed under the

closest outlet (usually the kitchen sink) on a non-tempered hot water line�

This test should be done early in the morning after overnight electrical boosting

before any hot water is used� The temperature of the water delivered should be at

least 55°C (allowing for heat losses in pipe work)�

If this is not the case, the temperature may need to be increased� Contact your

installer or Rinnai to discuss adjusting the thermostat�

No water from the hot tap? Restriction in the hot tap or failure of the cold water supply to the heater�

Check for water ow at the other hot taps and that the cold water isolation valve is

fully open�

HighElectricityBills

If you think your electricity

bill is too high, check for

these possibilities�

If, after investigating, and

you still require assistance

contact Rinnai.

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 ow 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 “Safety

Devices” on page 7�

There may be hot water leakages in hot water pipes or taps� Have these checked and

rectied by a plumber.

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

PERIODIC MAINTENANCE & SERVICING

If overow tray and drain are tted, it is the users responsibility to have these checked periodically to ensure there

are no blockages�

The user should operate the easing gear of the ECV and PTR valve (if tted) every 6 months as described under

“Safety Devices” on page 7�

Rinnai service network personnel are fully trained and equipped� If your Rinnai appliance requires servicing contact

Rinnai as per the details on the back page of this manual� Rinnai recommends that this commercial appliance be

inspected and serviced by a qualied person every 12 months.

The ECV and PTR valve MUSTBE checked for performance or replaced by a qualied person at intervals not

exceeding 5 years or more frequently in areas where the water is classied as scaling water (refer to “Water

Quality” on page 8 for details)�

If the electric supply conduit to the water heater is damaged, it MUSTBE replaced by a qualied person in order

to avoid a hazard�

CARE & MAINTENANCE

Loading ...

User Manual - Page 9