Having troubles with your Davey RB2 Rainbank controller and pump, read our troubleshooting guide below for some tips on working out the possible problem and solution

Davey Rainbank (RB2) Troubleshooting Guide

SYMPTOM: PUMP WILL NOT SWITCH OFF

1. Pump plugged directly into power outlet. Plug lead from pump into base of RainBank®

2. Water is still being used. Check all taps, toilets and appliances connected to RainBank® system to ensure they are

turned off.

3. Water is leaking on discharge side of RainBank® system. Check for leaks and repair.

4. Rock or debris caught insideRainBank®. Call your plumber to fit a Y strainer

SYMPTOM: PUMP WILL NOT SWITCH ON

1. Pump not plugged in. Plug pump into base of RainBank® and RainBank® into power supply.

2. No power supply to pump. Contact electrician and have power restored.

3. Float switch not connected to RainBank®. Plug float lead into base of RainBank®. The connection lead is located next to the power lead coming from the RainBank®. To confirm the connection is correct, depress ‘manual override’ button, pump will start.

4. No water in tank. Check water level in tank.

5. Float switch located at water tank is installed incorrectly. Check position of float.

6. Mains water supply not connected to RainBank. RainBank® system must have a pressurised water supply connected to inlet. Press ‘manual override’ button to simulate mains water flowing.

7. Mains supply to RainBank® turned off. Turn on mains water supply. Press ‘manual override’ button to simulate mains waterflowing. Pump will start is rain water is available.

8. Pump is faulty. To confirm if the fault is within the pump, plug the pump directly into power point and check to see if starts. If the pump starts plug the pump back into the RainBank® and continue fault finding. If the pump does not start contact your supplier for further advice.

9. Lead from float switch to pump broken or damaged. Replace float and lead assembly.

10. Float switch defective. Contact your supplier for further advice.

11. Mains water flow is too low. Ensure flow at most distant outlet is above 5 litres per minute.

OTHER SYMPTOMS:

Mains water is still in use when pump is running.

Possible cause - pump needs to be primed. Stop pump and remove priming plug from front top of pump (right above water inlet) and allow all air to escape from pump. Replace the priming plug when water dribbles out of hole.

Mains water is still in use when pump is running.

Possible cause - debris is caught inside RainBank preventing plunger mechanism from sealing completely. Contact your plumber to fit a ‘Y’ strainer to system between tank & RainBank.

Mains water is still in use when pump is running.

Possible cause - pump impeller blocked. Have pump serviced. Fit first flush devices and ‘Y’ strainer to pipework.

Mains water not passing through RainBank®.

Possible cause - RainBank® installed backwards. Install RainBank® according to installation & operating instructions. Arrow on top of RainBank indicates direction of flow.

Mains water not passing through RainBank®.

Possible cause - debris is blocking inlet to RainBank®. Remove RainBank® and clean inlet. Check all filters are clean.

Mains water pressure and flow too low. Possible cause - there is a check valve or PRV installed between RainBank®

and tank. Remove check valve or PRV from plumbing. Check all filters in plumbing are clean.

Pump hums.

Possible cause - pump is jammed or seized. Have pump serviced.

Water leaking from connection between pump and RainBank®.

Possible cause - installer has failed to fit connection kit correctly. Remove RainBank® and re-install connection kit.

Mains water filling up tank.

Possible cause - debris caught inside RainBank®. Install first flush devices and ‘Y’ strainer.

Green light flashing.

Boot-up sequence only.

Red light flashing. Pump has lost prime and needs to be filled with water

Please remember this is only a guide, please refer to your Davey owners manual for your model pump, for more in depth troubleshooting, or contact your local Davey Service Dealer. You nearest service dealer can be found here :- Davey Service Dealers