E1 Error
Common causes and solutions for resolving E1 errors in troubleshooting guide.
Table of Contents
E1 Error
If you encounter an E1 error on your display, the unit has automatically turned the mini-pump on and off five times in an effort to resolve the issue. The E1 error typically indicates one of two issues: a stuck check valve or an airlock. Follow the steps below to troubleshoot and resolve the error.

Disconnect hose and flip the connection.
- Reversing the connection alters the water intake flow from one side to the opposite side.
- Power on the Dock Pro to see if the error clears. Proceed to the next step if error persists.
Disconnect the Dock Pro
- Detach your Dock Pro from the hose and bring it to a sink or bathtub where you can conveniently plug it in, or alternatively, use a bucket.
Try to Dislodge the Check Valve
- The following instruction is applicable only to a Dock Pro unit equipped with a black manual check valve. If your Dock Pro features a black/white check valve or an electric solenoid, this instruction does not apply.
- Shake the Unit: Before turning it on, gently shake the unit from side to side and front to back to help dislodge the metal ball in the check valve.

Attach the Drain Key
- Attach Drain Key: While the unit is still powered off, attach the drain key.

Check Water Flow
- Fill the Reservoir:
- With the drain key attached and the unit powered off, fill the reservoir with water and place it back in the housing.
- Observe the flow of water from the drain key. If the water flows freely, everything is functioning correctly.
- If the flow is obstructed, the check valve may be stuck and requires cleaning.
The following instructions are applicable only to Dock Pro units equipped with black manual check valves. If your Dock Pro features black/white check valve or electric solenoid, these instructions do not apply.
Try cleaning the check valve before proceeding with the retrofit of the electric check valve solenoid.

How to clean the Check Valve
Tools
Tool 1 | Phillips screwdriver or poker rod |
Supplies | Isopropyl Alcohol 70% or higher |
Supplies | System Cleaner Packet |
Supplies | Cup, Distilled Water, Clean Damp Cloth |
Ready the Dock Pro for disassembly
Click to expand instructions
Unplug the Power Cord: Disconnect the power cord from the Dock Pro.

Unplug the Water Feed Hose: Disconnect the water feed hose from the Dock Pro. *Note: Keep a rag handy for any spilled water.

Remove the Water Reservoir: Take the water reservoir out of its housing.

Dump the Water: Remove the reservoir, then detach the lid and transfer the water into a bucket..
Attach the Drain Key: Secure the Drain Key to the Dock Pro.

Drain Water: Position the Dock Pro over a bucket, holding it at an angle with the drain key pointed downward to drain water from the unit.

Drain remaining water: Align the Dock Pro reservoir opening over the bucket to pour out any remaining water from the unit.

Flip the Dock Pro: Turn the Dock Pro on its side to access the screws.
Remove the Screws: Using a screwdriver, take out the 8 screws.


Reposition the Dock Pro: Once the screws are removed, set the Dock Pro back upright.
Lift the Cover: Lift the cover partially away from the Dock Pro to Identify the display cable connected to the control board, identify the display cable connected to the control board.

Disconnect the Display Cable: Carefully detach it, and then set the Dock Pro housing aside.

Removing the Check Valve
Click to expand instructions
Cut Zip Ties: Cut the zip ties that are bundling the cables.

Unplug Power Cables: Unplug the Air Solenoid power cables from the control board.

Unplug Water Level Sensor: Unplug the Reservoir Water Level Sensor cables from the control board.

Disconnect Air Line: Unplug the air line from the Air Solenoid by cutting the zip.

Remove Reservoir Housing: Unscrew the 3 screws holding the Reservoir Housing to the base to remove it.

Remove Water Line from Reservoir Outlet: Cut the zip tie holding the water line connected to the Reservoir Outlet and remove the hose.

Set Reservoir Water Aside: Remove Check Valve and set the Reservoir Water aside for later use.


Example of a stuck closed check valve: This issue can occur when distilled water is not used, leading to mineral deposits or microbial growth. To prevent stuck closed check valves, it's essential to use distilled water and Chilipad System Cleaner.


Dislodge the Metal Ball: Take a small screwdriver or a poker.

Carefully push the metal ball to dislodge it from its current position.

Prepare for Soaking: Obtain Isopropyl Alcohol (70% or higher).
Soak the Check Valve: Place the check valve in a container (fully submerged). Allow it to soak for a 15 minutes to ensure proper cleaning or treatment.

Check Valve Reassembly
Click to expand instructions
Reattach check valve: Reattach the check valve to the mini pump, securing it with zip ties at both ends and to the reservoir outlet.

Secure Mount Reservoir Housing: Screw the 3 screws holding the Reservoir Housing to the base.

Connect Air Line: Connect air line from the air solenoid to reservoir housing. Secure the connection with a zip tie.

Plug Power Cables: Plug the Air Solenoid power cables to the control board.

Plug Water Level Sensor: Pug the Reservoir Water Level Sensor cables to the control board.

Secure the cable bundle: Combine cables by using the provided zip ties.

Reassembling the Dock Pro
Click to expand instructions
Retrieve the Dock Pro Housing: Take the Dock Pro housing that was previously set aside.
Reconnect the Display Cable: Carefully attach the display cable back to the control board.
Lower the Cover: Gently lower the cover back into place on the Dock Pro.

Reposition the Dock Pro: Set the Dock Pro upright.
Reinsert the Screws: Using a screwdriver, insert and tighten the 8 screws securely.

Flip the Dock Pro: Turn the Dock Pro back to its original upright position.
Reattach the Water Reservoir: Place the water reservoir back into its housing.

Reconnect the Water Feed Hose: Attach the water feed hose back to the Dock Pro.

Plug in the Power Cord: Reconnect the power cord to the Dock Pro.

Instructions for Refilling Your Dock Pro
- Open the reservoir and add one packet of System Cleaner.
- Pour in distilled water as needed to fill the reservoir.
- Using a clean damp cloth, wipe down the control unit to keep it clean and functioning properly.
- Power up the Dock Pro and check for leaks.
Additional Help
If you have followed all the steps and the issue persists, please contact our Customer Experience Team for further assistance.