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01512-320E
E10 Circulation Pump w/ Flow Switch
$229.00 $179.00

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01512-321
E10 Circulation Pump
$229.00 $169.00

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01512-330
E-3 Fountain Pump
$159.00 $139.00

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01710-131
¾” Flow Switch
$34.00 $31.00

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01710-132
UltraPure Flow Sensor Tee
$16.95 $14.95

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01710-130
Flow Switch Tee Assembly
$59.95 $39.75

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01710-138
Temp Sensor / Flow Switch Assembly
$79.95 $49.95

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01515-04
Len Gordon Pressure Switch
$21.00 $17.75

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01515-04R
Red Pressure Switch
$15.95 $13.50

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01515-10
Pressure Switch
$35.95 $22.75

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01520-05
Tri-Delta Pressure Switch
$29.95 $26.95

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01560-76
Sensor Harness
$54.95 $45.00

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01510-348
Temperature Sensor Tee
$10.00 $9.75

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01510-296
Threaded Sensor Plug 3/4
$7.50 $5.95

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01710-14
Flow Switch
$52.99 $47.75

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01710-18
C.P. Flow Switch Assy.
$75.95 $65.00

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Hot Tub Flow Switch

Have you ever seen a Dimension One Spa low flow error on your upper control panel and did not know what it meant? All spa heaters require an adequate amount of water flowing through them to activate and warm the water. If there is not enough “flow” and the heater turns on, safety issues could occur. Because of this all D-1 Spas use a flow switch or a pressure switch, (depending on the heater design), to sense adequate flow. The flow or pressure switches are an important safety device used for your protection.

Just remember no flow – no heat, and low flow – no heat.

Flow can be affected by an inadequate water level, old or dirty filters, clogged 01781-27 heater or ozone lines, or a defective circulation pump. If your Dimension One hot tub was made after 1997 and has 2 filters, water is moved through your D-1 heater with a 01512-320E circulation pump. To learn more about fixing a low flow error, watch our low flow video. If you still see the low flow error message and have a question, please call us. Resolving this situation might take some additional assistance and the expert service techs at Easy Spa Parts know all the tricks. We’ve built our business and reputation helping spa owners troubleshoot problems over the phone.

Dimension One Spa Flow Switch

If your D1 spa flow error is on a hot tub made with just one filter, you probably have a 01515-04 Dimension One Spa pressure switch. Many of the issues listed above apply here too, so our low flow video is a good place to start troubleshooting. Feel free to call if you have a question!

In summary, a Dimension One hot tub low flow error is something we see often. There are several causes, many of which you can fix yourself. If you need assistance, we are here to help with hot tub parts and troubleshooting. Remember, don’t spend more time or money than necessary on your spa. Give us a call instead.

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“I feel like you are my personal hot tub repairman. You have probably saved me hundreds of $$$. Sending two parts to try and “just send the one back that doesn’t fix the problem”, and “call me when you get the part, I’ll tell you what to do” is unheard of in today’s world!!! ”
- Carole M.

“Your service has been heaven sent, especially when I had trouble and you stood by me and held my hand. Since I"m in the Northeast, our winters are snowy and cold, but Easy Spa Parts has kept me in hot water! I can"t recommend you folks strongly enough. ”
- Steve H.