Rheem 70103 Service Instructions Manual page 49

6. Pull silicone tube away from inlet solenoid valve ensuring any escaping water does not
flow onto electrical components. Note: Silicone tube is easier to remove if seal has
been cracked first by levering with a small flat bladed screwdriver.
7. Remove inlet fitting lock nut by unscrewing locknut in an anticlockwise direction.
8. Remove inlet solenoid valve complete with inlet fitting from BWU then remove inlet
fitting from inlet solenoid valve by unscrewing inlet fitting in an anticlockwise direction.
9. If inlet sealing tube requires replacing; pull sealing tube from inlet fitting by hand. Do
not use pliers as sealing tube o'ring will be damaged. Note: Do not perform this step if
sealing tube does not require replacing.
10. Complete reassembly in reverse order of above ensuring correct solenoid valve (0.5L
or 2.5L/min) is fitted, and silicone tube is not kinked. Note: if sealing tube was removed
in step 9, reinstall so as arrow on sealing tube points towards inlet solenoid valve.
11. Check for leaks.
Silicone Distribution (inlet) Tubing (Procedure 7)
1. Isolate power and water supplies to BWU.
2. Operate tap lever until water ceases to flow from tap.
3. Remove jacket surround (refer to procedure 1).
4. Pull silicone tube away from inlet solenoid valve ensuring any escaping water does not
flow onto electrical components. Note: Silicone tube is easier to remove if seal has
been cracked first by levering with a small flat bladed screwdriver.
5. Pull silicone tube away from tank inlet fitting. For 3L – 5L models the inlet tubing can
now be removed from the BWU. For 7L – 40L models also pull tubing away from top
and bottom of heat sink tube to remove inlet tubing in two sections. To do this the
controller will have to be unfixed from backing plate by following steps 4 – 6 of
procedure 14.
6. Complete reassembly in reverse order of above ensuring silicone tubes are not kinked.
7. Check for leaks.
Vent Outlet Fitting & Vent Line Silicone Tube (Procedure 8)
1. Isolate power and water supplies to BWU.
2. Operate tap lever until water ceases to flow from tap.
3. Remove jacket surround (refer to procedure 1).
4. Disconnect and remove external pipe work from vent outlet fitting.
5. Pull silicone tube away from vent outlet fitting. Note: Silicone tube is easier to remove if
seal has been cracked first by levering with a small flat bladed screwdriver.
6. To remove vent line silicone tube; pull silicone tube away from tank vent outlet pipe.
7. Complete reassembly in reverse order of above ensuring silicone tube is not kinked.
8. Check for leaks.
TM063 701, 702 & 703 Series Boiling Water Unit Service Instructions
Revision D: Feb 2017
This document is stored and maintained electronically by
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
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