Effectrode Thermionic warrants your pedal to be free from defects in material and workmanship for a period of five years from the original date of purchase. The tubes, pots, footswitch and power supply are warrantied for a period of ninety days from the original date of purchase. If your pedal fails within this period then Effectrode will repair or, at our discretion, replace the pedal at no cost to you.

Effectrode pedals are designed to last and be repaired, if you have a pedal with a fault that falls outside of the warranty, we are still able to repair it for you, contact us for details.

Using a reversed polarity power supply will damage your pedal and cause a number of components to fail. If you have used a reversed polarity power supply please advise us as this will speed up the diagnosis time and reduce your repair cost.


This warranty covers defects in manufacturing discovered while using the pedal as recommended by Effectrode. This warranty does not cover loss or theft, nor does the coverage extend to damage caused by misuse, abuse, unauthorised modification, improper storage, lightning, or natural disasters. All shipping costs are the responsibility of the customer.


In the case of malfunction, the purchaser’s sole recourse shall be repair or replacement, as described in the preceding paragraphs. Effectrode will not be held liable to any party for damages that result from the failure of the pedal. Damages excluded include, but are not limited to, the following: lost profits, lost savings, damage to other equipment, and incidental or consequential damages arising from the use, or inability to use this product. In no event will Effectrode be liable for more than the amount of the purchase price, not to exceed the current retail price of the product. Effectrode disclaims any other warranties, express or implied. By using the product, the user accepts all terms herein.


The first thing to check is that you are using the correct power supply, most power supplies are designed for low-power transistor/opamp pedals and simply cannot supply enough juice for real vacuum tube gear. Effectrode pedals are more like tube amplifiers in their power supply requirements and demand high currents and voltages to operate correctly. A typical transistor pedal will use in the order of just a few milliamps, Effectrode pedals with three tubes require a minimum of 1200mA. Please make sure you check the polarity is correct (center positive) otherwise you will damage your pedal. The Wall-wart supplied with our pedals supplies the correct power.

The next thing to check is the tubes, just because they are lit up does not necessarily mean they are working. Swapping miniature tubes in Effectrode pedals is as quick and easy as changing a light-bulb. First disconnect the pedal from the mains power outlet. A tube can be removed by gently gripping and pulling the glass envelope whilst wiggling it in a circular motion. When replacing a tube make sure the pins are aligned correctly with the tube socket and gently push it into position. Never use excessive force to insert the tube as this may bend pins. The tubes inside our smaller pedals such as the PC-2A, Fire Bottle and Blue Bottle are not user serviceable, these pedals will need to be returned to Effectrode in the unlikely event that they require tube replacement.

Another thing to consider is have you been tube swapping? Changing tubes multiple times can gradually push the pins inside the tube socket apart, you can check for this with a magnifying glass and good lighting, they can easily be bent back into place. Look straight down inside, see if any of the pins are wonky, if they are loose (too far open) they will not make a good connection. It is common practice to re-tension the tube sockets after changing tubes a number of times.

You can also check the pedal by connecting it directly to your amp with no other pedals, and with no cable connected to the input of the pedal, does the problem still persist?


Contact Effectrode with your pedal serial number and your full name, address and telephone number, and full details of the issue that you are experiencing, by email to for a Return Number (RN) and information. After you receive your RN, ship your product via a guaranteed, trackable shipping service (UPS, FedEX, USPS, etc) to the address provided with a copy of the Returns Note.

You do not need to return the power supply with the pedal if you are sure that your issue is not with the power supply. Please ship the pedal with all tubes fitted so that we can fully test your pedal before returning it.

We recommend that the return shipping method include tracking to protect against lost shipments.

All shipping costs are the responsibility of the customer.

After receiving an RN number, the customer must return the associated item within 7 days.

Proof of original ownership may be required in the form of receipt from an authorised dealer.