Skip to content

Built in Calgary since 2000

Sign in Account Cart
Herpstat Intro V2 & Intro+ V2 Replacement Fuses – 3-pack

Spyder Robotics

Herpstat Intro V2 & Intro+ V2 Replacement Fuses – 3-pack

From $5.00

25 in stock, ready to ship

Buy more, pay less

Each, for the whole order. Change the quantity below and the total follows.

Spare fuses for the Herpstat Intro V2 and Intro+ V2, so a blown fuse does not leave your heat off while you wait for parts. Three 3.15 amp, fast-acting, 5 x 20 mm fuses, the rating Spyder Robotics specifies for these Version 2 models.

Tell me when it is back

One email when it is back in stock. No list, no newsletter.

Goes in your cart as the best price:

  • Items in all

Subtotal with your choices

Your cart already has all we have.

in stock now. The other are on backorder and ship as soon as they are in.

  • Ships across Canada and the USA. Shipping is priced before you pay anything.
  • Free pickup in Calgary, or at any Alberta show.
  • 14 day returns on stock items, one year warranty on our builds.

Part number FuseIntro

Description

On this page
  1. Which fuse it replaces
  2. Replacing a fuse
  3. Questions
  • 3.15 A
  • Fast-acting
  • 5 x 20 mm
  • 3-pack
  • Intro V2 and Intro+ V2

When a fuse blows, the thermostat loses power and so does the heat it controls. Keeping the right spare on hand means you can be running again as soon as the cause is fixed.

At a glance

Rating
3.15 A
Type
Fast-acting
Size
5 x 20 mm
Quantity
3
Fits
Herpstat Intro V2 and Herpstat Intro+ V2
Not for
Herpstat 1 (6.3 A), Herpstat 2 (8.0 A)

Which fuse it replaces

These are listed for the Version 2 Intro and Intro+ only. If you have an earlier Intro, check its manual for the fuse it needs before ordering. Other Herpstats take different fuses, so match yours from the table.

Thermostat

Fuse

Spares

Herpstat Intro V2 and Intro+ V2

3.15 A, 5 x 20 mm

This pack

Herpstat 1 Basic, 1, 1 Redline, and 1 SpyderWeb

6.3 A, 5 x 20 mm

Herpstat 1 fuses

Herpstat 2, 2 Redline, and 2 SpyderWeb

8.0 A, 5 x 20 mm

Herpstat 2 fuses

Herpstat 4 V2 and 4 SpyderWeb, each output

3.5 A, 5 x 20 mm

Herpstat 4 fuses

Herpstat 6, each output

3.15 A, 5 x 20 mm

Herpstat 6 output fuses

Herpstat 6, main fuse

15 A, 6.3 x 32 mm

Herpstat 6 main fuses

Herpstat EZ1

4.0 A, 5 x 20 mm

EZ1 fuses

Herpstat EZ2

6.3 A, 5 x 20 mm

EZ2 fuses

Replacing a fuse

A blown fuse is a sign of an overload, a short, or a power surge. The fuse sits inside the thermostat housing.

  1. Unplug the Herpstat from the wall, then unplug the heaters and other cables.

  2. Find what blew the fuse, such as an overloaded output, a damaged cord, or a failed heater, and fix it first.

  3. Check the spare: 3.15 A, 5 x 20 mm, fast-acting.

  4. Open the housing to reach the fuse, following the Spyder Robotics manual for your model. If you are not comfortable working inside electrical equipment, ask a qualified technician.

  5. Swap the fuse, make sure it is seated, and close the unit up.

  6. Plug back in, check the thermostat powers on, and watch the heaters hold temperature over a few cycles.

Find the cause first
A blown fuse usually means an overload, a short, or a power surge. Unplug everything before you replace it, never fit a higher-rated or slow-blow fuse or bypass the holder, and if the new fuse blows too, stop using the unit until the fault is found. If you are unsure, ask Spyder Robotics or a qualified technician.

Useful with it

Questions

Will these fit the original Herpstat Intro?

They are listed for the Version 2 models. Check your earlier Intro's manual for its fuse rating first, or ask us with your model.

Will they fit a Herpstat 1 or Herpstat 2?

No. The Herpstat 1 takes a 6.3 amp fuse and the Herpstat 2 an 8.0 amp fuse. We stock both.

Does a blown fuse mean my thermostat is broken?

Not necessarily. The fuse may have done its job and cut power before anything was damaged, but the fault that blew it still needs finding.

Part numberFuseIntro
BrandSpyder Robotics
Shipping weight0.2 lb
Shipping box1 x 1 x 1 in

Box size and weight are the packed carton, for shipping only, not the size of the item itself.

Shipping

Parcels across Canada and the US are priced at checkout from the packed boxes. Pallets and freight we price by hand, usually within one business day, and you pay nothing until you have seen the total. Pickup in Calgary is free.

Returns

14 day returns on eligible unused stock items, return shipping paid by the customer. Built-to-order goods are covered by the construction warranty rather than by returns. Restocking Fees Apply for returns

Warranty

One year warranty on the construction of anything we build.

Questions

Ask about it

Anything this page does not answer. We will get back to you as soon as we can, and good answers go up here for the next person.

More in Thermostats and monitoring

See them all