17
MAINTENANCE REQUIREMENTS
MINOR MAINTENANCE EVERY SIX MONTHS
It is recommended minor maintenance be performed every six (6) months. Minor maintenance can be
performed by the dwelling occupant.
The minor maintenance includes:
• If readily and safely accessible, operate the easing lever on the temperature pressure relief valve. It is
very important the lever is raised and lowered gently. Refer to “Relief Valves” on page 10.
If the relief valve lever is not readily and safely accessible, contact Rheem Service or their nearest
Accredited Service Agent. Do not attempt to climb onto a non-trafficable roof to operate the relief valve
lever.
Warning: Water discharged from the temperature pressure relief valve drain line will be hot. Exercise
care to avoid any splashing of water by standing clear of the drain line’s point of discharge when operating
the valve’s easing lever.
• If readily and safely accessible, operate the easing lever on the expansion control valve. It is very
important the lever is raised and lowered gently. Refer to “Relief Valves” on page 10.
If the relief valve lever is not readily and safely accessible, contact Rheem Service or their nearest
Accredited Service Agent. Do not attempt to climb onto a non-trafficable roof to operate the relief valve
lever.
MAJOR SERVICE EVERY FIVE YEARS
It is recommended a major service be conducted on the water heater every five (5) years.
Warning: Servicing of a water heater must only be carried out by a qualified person. Phone Rheem Service
or their nearest Accredited Service Agent.
Note: The major service and routine replacement of any components, such as the relief valves, are not
included in the Rheem warranty. A charge will be made for this work. Only genuine replacement parts should
be used on this water heater.
The major service includes the following actions:
• Replace the temperature pressure relief valve.
• Inspect and flush the expansion control valve. If required, replace the valve.
• Check the booster heating unit for excessive calcium build up or corrosion and replace if necessary.
• Drain, check and refill or replace (if required) the closed circuit fluid (52H series).
• Flush and bleed the solar collectors (52L series).
• Drain and flush the solar storage tank of sediment build-up if required.
• Clean the collector glass.
• Visually check the unit for any potential problems, e.g. broken glass, excessive dust and dirt build-up,
shading.
• Check the condition of the pipe insulation, if fitted, on the solar hot and solar cold pipes. Replace or make
good if required.
• Inspect all connections.
Note: The solar storage tank may need to be drained during this service. After the completion of the service,
the solar storage tank will take some time to reheat the water by solar gain. Depending upon the power supply
connection to the booster heating unit, hot water may not be available until the next day.
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