Rheem RHW42 Installation And Operation Manual page 23

PROBLEM
1. No salt in the storage tank.
No soft water
No soft water & dis- 1. Power supply unplugged at wall outlet, or
play is blank
2. Fuse blown, circuit breaker popped, or cir-
3. Electronic control board malfunction.
No soft water & salt 1. Salt storage tank "bridged".
level not dropping
2. Bypass valve(s) in "bypass" position.
1. Dirty, plugged or damaged nozzle & venturi
No soft water & salt
storage tank full of
water,
2. Inner valve fault causing leak.
water running to
drain while unit is in 3. Valve drain hose is plugged.
the soft water cycle
4. Valve drain line and Salt Storage Tank
5. Low or high system water pressure (low
6. Brine float dirty or broken.
7. Leak between valve and resin tank.
1. Incorrect time set.
Water hard some-
times
2. Incorrect water hardness set.
3. Incorrect model code programmed.
4. Hot water being used when softener is
5. Possible increase in water hardness.
6. Leaking faucet or toilet valve. Excessive
1. Clear water iron in water supply.
Iron in water
2. Iron in soft water.
3. Bacterial or organic bound iron.
Resin in household 1. Crack in distributor or riser tube.
plumbing
Salt storage tank 1. Crack in brine tank.
leaking
1. Motor malfunction or internal valve fault
Motor stalled or
clicking
1. Fault in wiring harness or connections to
Error code E1, E3 or
E4 appears
2. Fault in switch.
3. Fault in valve causing high torque.
4. Motor inoperative.
Error code E5 1. Electronic control malfunction.
1. System not connected by Wi-Fi to the "cloud".
Status light off, but
display is not blank
2. Status light dislodged from its holder.
Troubleshooting Guide
CAUSE
power cable disconnected from back of elec -
tronic board or power supply malfunction.
cuit switched off (See "Program Memory"
on Page 15).
assembly
overflow drain connected together by a tee.
pressure may disrupt brine draw during
recharge, high pressure may cause inner
valve parts failure).
regenerating.
water usage.
causing high torque on motor.
position switch.
Refill with salt and then use RECHARGE NOW feature.
Check for loss of power and correct. Reset electronic
controls and then use RECHARGE NOW feature.
Replace fuse, reset circuit breaker, or switch circuit on,
and then use RECHARGE NOW feature.
Replace electronic control board (See Page 29).
Refer to "Breaking a Salt Bridge" section to break.
Move bypass valve(s) to "service" position.
Take apart, clean and inspect nozzle & venturi (See
"Cleaning the Nozzle & Venturi" section.
Replace seals and rotor.
Hose must not have any kinks, sharp bends or any water
flow blockage (See "Valve Drain Requirements" section.
Disconnect tee and run separate drain lines.
If pressure is low, increase well pump output to a mini-
mum 20 psi. If daytime pressure is over 100 psi, add a
pressure reducing valve in the supply pipe to the soften-
er. Contact a licensed plumber.
Clean or replace Brine Valve Float Assembly.
Replace o-rings between resin tank and valve.
Check and change time setting.
Refer to "Set Water Hardness" section to set correctly.
Refer to "Program the Water Softener" section to set cor-
rectly.
Avoid using hot water while the softener is regenerating,
as the water heater will fill with hard water.
Test untreated water for hardness and iron, and program
the water softener accordingly (See "Set Water
Hardness") section to set.
A small leak can waste hundreds of gallons of water in a
few days. Fix all leaks and always fully close faucets.
Test untreated water for hardness and iron, and program
the water softener accordingly (See "Set Water
Hardness") section to set.
Clean resin bed with Resin Bed Cleaner. Follow instruc-
tions on package.
Cannot be treated by water softener.
Replace resin tank assembly.
Replace salt storage tank assembly.
a. Replace rotor/seal.
b. Replace motor & switch.
Replace wiring harness or connections to position switch.
Replace switch.
Replace rotor/seal.
Replace motor.
Replace electronic control board.
a. If internet service goes down, connection will automat-
ically resume when internet service comes back up.
b. If the home's wireless router was replaced, reconnect
and register the system, as shown on Pages 16 &17.
Remove top cover and reinsert status light into its holder.
23
CORRECTION